The Motion of a Plane Evaporation Front in a Superheated Liquid

Abstract

The velocity of the interface between liquid and vapor phases when a slightly superheated liquid changes to vapor is found. The temperature distribution in the liquid ahead of the evaporation front can then be determined by a numerical integration. 2 NOMENCLATURE A= length scale factor defined in equation (20) b M slope, dp/dt, of the saturation curve 9-dimensionless temperature defined in equation (9)

Cavitation in Liquid Cryogens

“…3, and p = 0. 5 ( see data set T [1][2][3][4][5][6][7][8][9][10][11][12][13][14] were least affected by reference cavity length; note that these exponents produce a low standard deviation. In general, the 2.0 in.…”

“…While the non-cavitating performance of hydraulic equipment may be predicted from established similarity laws, cavitating performance can seldom be predicted from fluid to fluid. The effects of fluid properties on cavitation performance are well recognized [5][6][7][8][9][10][11][12][13][14] and require more understanding to develop improved similarity relations [ 151 for equipment design. NASA has undertaken a program [ 161 to determine the thermodynamic behavior of different fluids in an effort to obtain improved design criteria to aid in the prediction of cavitating pump performance.…”

Incipient and developed cavitation in liquid cryogens

“…While the non-cavitating performance of hydraulic equipment may be predicted from established similarity laws, cavitating performance can seldom be predicted from fluid to fluid. The effects of fluid properties on cavitation performance are well recognized [5][6][7][8][9][10][11][12][13][14] and require more understanding to develop improved similarity relations [ 151 for equipment design. NASA has undertaken a program [ 16] to determine the thermodynamic behavior of different fluids in an effort to obtain improved design criteria to aid in the prediction of cavitating pump performance.…”